CX23417 = CX23416 去掉 "PCI Interface".

Conexant MPEG Encoders : http://www.conexant.com/products/entry.jsp?id=146
CX23416 : http://www.conexant.com/products/entry.jsp?id=120
CX23417 : http://www.conexant.com/products/entry.jsp?id=455
CX23418 : http://www.conexant.com/products/entry.jsp?id=150